Image Protecton on the Web - Conclusions and References

EXHIBITS

Évora

Member’s Exhibit

John Cody

Poster Session

Isabel Catalão

Sagres

Oceans

Lisbon

Scientific Illustration

Medical Illustration

Guild of Natural
Science Illustrators
GNSI 2000 Portugal: International Conference & Annual Meeting July 30 - August 07 2000 in Évora, Lisboa and Sagres, Portugal.

Sponsor:

Self-managed Portfolios
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Conclusions and References:

Conclusions:
Use steps that will discourage drive-by image grabbing while not annoying users or demanding knowledge of plug-in installation or Javascript use.

Limit images size to the minimum needed to meet your needs.
Use visual watermarks to discourage reuse on the web.
Use aggressive compression settings to limit reprint quality.

Only consider hidden watermarking if you have extremely hot types of imagery that is likely to be grabbed and posted elsewhere. This may occur when you have sold limited use rights to a customer that will show the image on the web and will be making news with it. Web sites with current event related news items often pick these things up. Only consider encoded Javascript and Java applets if you plan to offer high resolution, reproduction quality images on the web.

References:
http://www.safemedia.com/
A Java based browser plug-in for viewing a proprietary image format with site of origin checking.

http://www.cl.cam.ac.uk/~fapp2/steganography/
The information hiding home page - digital watermarking & steganography.
An academic site devoted to hidden information and exposing the weaknesses of various methods.

http://www.gamacles.com/
A Javascript based solution for protecting all aspect of a web page (except screen capture).

http://www.kagi.com/equitysoft/default.html
Makers of several copy protection products, including ImageSafe - a Java based applet that allows animated watermarks.

http://www.Digimarc.com/imaging/index.shtml
The most widely known company for hidden digital watermarking technologies.

http://www.alchemedia.com/products/viewer.html
A Java based browser plug-in that disables all copy abilities, including screen capture, for selected JPG and GIF images. Requires deep system access.

http://www.servesafe.net
Servesafe offers a hosting service for your valuables. You place links to material on there servers. To view this material you need a plug-in that uses their proprietary "Clever Content Technology". Using this software, they keep images from being copied, saved, printed, directly linked to or even screen captured.

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